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Finding the Third Proportional to 18,731.53 and 40,134.87

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Solution

The third proportional to 18,731.53 and 40,134.87 is: 85,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.53 : 40,134.87 = 40,134.87 : x
  2. Step 2: Convert to fraction form
    18,731.53/40,134.87 = 40,134.87/x
  3. Step 3: Cross multiply
    18,731.53x = 40,134.87 × 40,134.87
  4. Step 4: Simplify right side
    18,731.53x = 1,610,807,564.16
  5. Step 5: Solve for x
    x = 1,610,807,564.16/18,731.53
  6. Step 6: Final answer
    x = 85,994.46

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.